Supplemental Cable Tests and Improved System Grounding

The objectives of this investigation were twofold:

Complete the investigation of the impulse performance of insulated jacket, semi-conductive jacket, and bare concentric neutral cable. Included were tests of induced currents from ground strokes and, for the two jacketed cable types, neutral-ground voltages and the voltage required to puncture the jackets.

Evaluation of various grounding electrodes and comparison of impulse impedance to measured and calculated ground resistances.